Recoil apparatus for guns.



' No. 713mm'. Patented: Nov. la, |902.' c. P. E. SCHNEIDER & J. B. G. A.ScANET.

. RECOIL APPARATUS FOR GUNS.

(Application led Apr, 17, 1901.)

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No.v7|3,e9|. Patented Nov.' la, |902. C. P. E. SCHNEIDER &. J. B. G. A. CANET.

RECUIL APPARATUSv FOR GUNS.

' (Application led Apr. 17, 1901.) (No Model.) 3 Sheets-Shouf; 3.

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CHARLES PROSPER EUGENE SCHNEIDER. AND JEAN BAPTISTE GUSTAVE ADOLPHE CANET, OF LE CREUSOT, FRANCE.

RECOIL APPARATUS FOR GUNS.

SPEGIFICATION forming part of Letters Patent No. '713,69`1, dated November 18, 1902.

Application tiled April 17, 1901. Serial No. 56.307. (No model.)

To d/ZZ whom it may concern:

Be it known that we, CHARLES PRosPEE EUGENE SCHNEIDER, ironmaster, and JEAN` BAPTISTE GUsTAvE ADOLPEE CANET, engineer, residing at Le Creusot, Sane-et-Lcire, France, have invented'certain new and useful Improvements in and Relating to Recoil Apparatus for Guns, of which the following is a full, clear, and exact specification.

This invention relates to recoil apparatus for guns, said apparatus according to this invention being characterized by one or more chambers or hermetic envelops containing a suitable elastic liuid or gas under pressure. The elastic iiuid under pressure, separated from the liquid of the recoil apparatus by an elastic partition, is during the recoil of the gun subjected to a pressure greater than its initial tension or pressure by the liquid which is acted upon by a compression or liquid-expelling piston in connection with the gun, the compressionof the elastic fluid being eected by the deformation of the elastic partition. At the termination of the recoil the compressed elastic iuid reacts upon the said liquid and piston for returning the gun to battery.

Our invention is particularly characterized by the use of one orfmore elastic envelops in the form of a vconcavo-convex disk or disks. These disks are made with circular corrugations acting to facilitate their deformation, which is limited by rigid diaphragms perforated for the passage of liquid therethrough, this disposition obviating any kind of packing, whether of leather, india-rubber,or hemp, and the like, between the two bodies. The various parts of the reservoir or receptacle for containing the elastic-fluid envelopY are brazed together, and the only joints that exist in the apparatus are those which separate the liquid from the atmosphere.

In order that our said invention y may be fully understood and readily carried into practice, we will proceed to describe the same more fully With reference to the accompanying drawings.

Figures l and 2 are longitudinal sections through recoil apparatus embodying our invention, Fig. l showing the parts in position before, and Fig. 2 after, recoil of the gun.

Figs. 3 and 6 are similar views of another embodiment of our invention. Figs. 4 and 5 are transverse sections on lines C D and A B, respectively, of Fig. 3. Figs. 7 and9 are views similar to Figs. 1 and 2 of still another embodiment of our invention, and Fig. 8 is a transverse section on line A'B of Fig. '7.

In the arrangement shown in Figs. 1 and 2 the same cylinder contains the hydraulic brake, the compressor, and the reservoir of elastic iiuid under pressure within its elastic envelop. v

Within the cylinder q, which is connected with a fixed part of the gun-mounting, is a hollow piston s, that is iixed to the gun by means of a bracket and moves therewith. Within the piston s is a hollow rod t, fixed to the cylinder q. At the forward part of the cylinder q there is a compression-chamber z, which contains the elastic-duid reservoir, formed of a cylinder @,which carries at one end a charging-nozzle and which is closed at the other end by a disk or cap y, of elastic material, such as steel, copper, india-rubber, or other appropriate substance. During the recoil the liquid contained in the annular space between the piston s and the cylinder q is forced into the interior of the piston by passing through orifices fn of uniform section and through orifices n' of varying section. As the volume of the rod t is less than thevolu me of the liquid expelled on the recoil,`the part of the liquid which can find no room in the interior of the cylinder q is driven into the compression-chamber situated at the front of thek cylinder. The disk or cap y, which occupies when the gun is in battery the position indicated in Fig. 1, becomes deflected or deformed by the expelled liquid,

and at the completion of the recoil it occupies the position shown at Fig. 2. This disk or cap is formed with circular corrugations designed to facilitate its defiection or deformation. A rigid plate or plug` c', formed with holes for the passage of the liquidsupports the elastic disk or cap and permits of charging the elastic-fluid reservoir when it is dis mounted. The plate 'U' is screw-threaded at its periphery into the rigid non-flexible part o and bears upon the edge of the disk/y, thereby securely but removably holding said 8oV i IOO `-tained in position by blocks or keys w.

disk in place. At the completion of the recoil the elastic fluid under pressure reacts upon the elastic disk or cap fy, and thus drives the liquid into the piston and returns the gun to battery. p

Referring to Figs. 3 and 6, the elastic-fluid reservoir is composed of a series of double convex chambers or compartments, each of Which is provided with a double elastic backing, formed of curved disks or caps y', similar to the aforesaid disk or cap y, (shown in Figs. 1 and 2,) but smallerin size. The external deformation of the elastic disks or caps is limited in the manner previously described by rigid back plates Q2', formed with holes for the passage of the liquid and main- All the double convex chambers communicate with each other by a pipe z, extending to a charging-nozzle provided on the exterior of the pistonj. This arrangement permits the reservoir to be charged with elastic lluid Without having to dismount the said chambers. During the recoil the liquid expelled from the cylinder 7c by the piston] enters the interior of the latter and compresses the elastic fluid inclosed in the double convex chambers 'u' by deforming the disks or caps y, Which thereupon assume the position indiated. Att the completion of the recoil the compressed elastic fluid reacts upon the said elastic disks or caps, which thereby drive the said liquid into the cylinder k and return the gun to battery.

The modified arrangement of Figs. '7, 8, and 9 differs from the last preceding arrang ement in that the double convex chambers are not connected with each other by a pipe, and each chamber is fitted with a charging-nozzle. The introduction of the elastic liquid under pressure into the said ,chambers Will therefore require to be effected after they have been dismounted. The operation of the parts during the recoil and the return to battery of the gun is the same as in the last-described arrangement.

What We claim in connection With recoil apparatus for guns isl. In a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a :fluid upon recoil of the gun, and a closed chamber containing fluid under pressure formed in part bya rigid Wall and in part by a flexible disk or cap exposed to the fluid which is adapted to be compressed by the piston said disk being free at its middle part to move with variations in the pressure of said fluid.

2. AIn a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a fluid upon recoil of the gun, a closed chamber containing fluid under pressure formed in part by a flexible disk or cap exposed to the fluid which is adapted to be compressed by the piston said disk being free at its middle part to move with variations in the pressure of said fluid, and means removably securing said disk in place about its edge.

3. In a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a fluid upon recoil of the gun, a closed chamber containing fluid under pressure formed in part by a rigid Wall and in part by a flexible disk or cap exposed to the fluid which is adapted to be com pressed by the piston said disk being free at its middle part to move With variations in the pressure of said lluid, and a stop limiting the movement of the disk due to the outward pressure of the fluid in the closed chamber.

4. In a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a fluid upon recoil of the gun, a closed chamber containing fluid under pressure formed in part by a flexible disk or cap, and a perforated rigid plate through Which said elastic disk or cap is exposed to the fluid Which is adapted to be compressed by the piston said plate acting as a stop to limit the movement of the disk due to the outward pressure of the fluid in the closed chamber.

5. In a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a fluid upon recoil of the gun, a closed chamber containing fluid under pressure formed in part by a rigid Wall and in part by a flexible disk or cap free at its middle part to move with Variations in the pressure of the fluid adapted to be compressed by the piston, and a perforated rigid plate through which said elastic disk or cap is exposed to said fluid said plate acting as a stop to limit the movement of the disk due to the outward pressure of the fluid in the chamber and to secure the flexible disk about its edge.

6. In a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a fluid upon recoil of the gun, a closed chamber removably associated With the piston and cylinder containing fluid under pressure formed in part by a flexible disk or cap exposed to the fluid adapted to be compressed by the piston, and an inlet-passage leading from the chamber to the outside of the apparatus through which the chamber may be charged with [luid before or after it is mounted in place.

7. In a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a fluid upon recoil of the gun, a closed chamber removably associated with the piston and cylinder containing fluid under pressure and formed in part bya flexible disk or cap exposed to the fluid adapted to be compressed by the piston, an inlet-passage leading from the chamber to the outside of the apparatus through which the chamber may be charged with fluid before or after it is mounted in place, and a perforated plate attached to the removable chamber limiting the outward movement of the disk due to the outward pressure of the fluid in the chamber.

8. In a recoil apparatus for guns, a cylin- IIO der, a piston in said cylinder acting to cornpress a fluid upon recoil of the gun, and a closed chamber containing a fluid under pressure formed in part by a corrugated ilexible disk orcap exposed to the fiuid in the cylinder.

9. In a recoil apparatus for guns, a cylinder, a piston in said cylinder acting to compress a luid upon recoil of the gun, and a closed chamber containing a uid under pressure formed in part by a concentrically-corrugated flexible disk or cap exposed to the iiuid in the cylinder.

lO. In a recoil apparatus for guns, acylinder, a pist-on in said cylinder acting to compress a fluid upon recoil of the gun, and a plurality of closed chambers containing fluid under pressure and each formed in part by a rigid Wall and in part by a exible disk or cap exposed to the fluid which is adapted to be compressed by the piston, said disk being free at its middle part to move with variations in the pressure of said fluid.

In Witness whereof We have hereunto set our hands in presence of two Witnesses.

CHARLES PROSPER EUGENE SCHNEIDER. JEAN BAPTISTE GUSTAVE ADOLPHE CANET.

Witnesses:

VJEAN GARNET,

EDMOND BLAISE. 

